Cassava is a staple food that plays a very important role for the Ivorian population. In the Central, Central-Western and Western regions of Côte d’Ivoire, where cassava is a staple food, growers cultivate several varieties whose diversity remains poorly understood. The aim of the present study was to analyze the agromorphological variability of cultivars collected in these growing basins, in order to make better use of this varietal diversity. Agromorphological characterization was carried out on a collection of 70 accessions collected from growers, using ten quantitative variables. Analysis of variance (ANOVA) showed significant phenotypic differences for all the traits studied. Principal component analysis (PCA) confirmed this polymorphism at 83.49% for the first three axes. Accessions were structured into 5 groups of morphological variability following Hierarchical Ascending Classification (HAC). These groups are distinguished by plant height, height of first branching, central lobe length, central lobe width, number of lobes, leaf length to width ratio, petiole length, tuberous root weight per plant and total yield. The first three groups have cultivars with yields in excess of 20 t/ha and constitute the best genetic resources for increasing cassava production in these growing basins and in Côte d’Ivoire.